1. the quality of being convincing; the power to persuade or make someone believe something is true
Usage: uncountable noun; often used in formal or academic contexts

Examples

• The convincingness of her argument won over the skeptical audience.
• The report lacked convincingness because it was based on incomplete data.
• His performance had a convincingness that made the fictional story feel real.
• The convincingness of the evidence was crucial to the jury's decision.
• Despite the convincingness of the presentation, some people remained doubtful.
• The author's use of specific details added to the convincingness of the narrative.